Semantic
Mining in Bio-Medicine, Jena, April 9-13, 2006
Steffen Staab (U Koblenz):
"Ontologies and the Semantic Web" (Tutorial IV)
Knowledge
rich domains benefit if knowledge structures are made explicit and
formal in order that they may be used by people as well as by machines.
In recent years there has been intensive research towards representing
and using two kinds of knowledge structures in particular. First,
ontologies have been investigated as a means to formalize a
conceptualization of a domain of interest, i.e. an ontology captures
the terminology of a domain as it remains constant over all the
different situations one may encounter for a domain. Second, the
semantic web has been conceived as an idea to provide a world wide
standard to represent data as well as ontologies - and to link such
data and ontologies. While the standardization allows for easy exchange
and reuse of encoded knowledge structures, the linkage of data and
ontologies allows for occurrence of even large network effects by the
community that exploits them.
In the tutorial we
will approach the foundations for both ontologies and the semantic web
and we will see some way of exploiting them in knowledge rich domains.
The structure of the tutorial is as follows:
What is an ontology? (20 min)
What is the Semantic Web? (20 min)
Representation language for ontologies and the semantic web (50min)
Semantic Integration (30 min)
Ontology learning from text (30 min)
Some uses of ontologies in text representation tasks (30 min)
Slides
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